<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>注册页面</title>
    <script language="JavaScript" src="ch02_10_JavaScript.js"></script>
</head>
<body>
    <form action="">
        <tr><td align="right">用户名：*</td>
            <td><input type="text" name="userName"/>
            </td>
        </tr>
        <input type="button" value="确认" onClick="validate()">
    </form>

</body>
</html>